BNR10/19 Ultra High Speed Series

Features of BNR10/19 Ultra High Speed Series

BNR10/19 series of ultra-high-speed precision thrust angular contact ball bearings, which can correspond to high-precision, ultra-high-speed rotations with an inner diameter of less than 30mm, and a high-performance series of high-performance products for small shafts.

Applications

The scope of application is wide. Our products survive by quality, develop by reputation, and win the market by service.

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Parameter Introduction Quality Standard

Parameter

Ultra High-speed Angular Contact Ball Bearings(Robust Series)
Bearing Numbers	Boundary Dimensions(mm)					Basic Load Ratings(kN)		Permissible Axial Load(kN)	Effective Load Center(mm)a	Mass(kg)(approx.)	Sealed Design	Limiting Speeds(²)(min)
Bearing Numbers	d	D	B	r(min)	r1(min)	C(Dynamic)	C(Static)	Permissible Axial Load(kN)	Effective Load Center(mm)a	Mass(kg)(approx.)	Sealed Design	Grease	Oil
25BNR19S	25	42	9	0.3	0.15	5.95	3.50	4.95	9.9	0.042	○	41800	59800
25BNR19H	25	42	9	0.3	0.15			3.25		0.038	○	53800	83600
25BNR19X	25	42	9	0.3	0.15			3.25		0.038	○	62700	98600
25BER19S	25	42	9	0.3	0.15	5.70	3.40	5.90	12.3	0.042	○	35900	50800
25BER19H	25	42	9	0.3	0.15			3.95		0.038	○	47800	74700
25BER19X	25	42	9	0.3	0.15			3.95		0.038	○	56800	89600
30BNR19S	30	47	9	0.3	0.15	6.30	4.05	5.75	10.8	0.048	○	36400	52000
30BNR19H	30	47	9	0.3	0.15			3.80		0.043	○	46800	72800
30BNR19X	30	47	9	0.3	0.15			3.80		0.043	○	54600	85800
30BER19S	30	47	9	0.3	0.15	6.00	3.90	6.80	13.5	0.048	○	31200	44200
30BER19H	30	47	9	0.3	0.15			4.60		0.043	○	41600	65000
30BER19X	30	47	9	0.3	0.15			4.60		0.043	○	49400	78000
35BNR19S	35	55	10	0.6	0.3	9.20	6.00	8.55	12.3	0.048	○	31200	44500
35BNR19H	35	55	10	0.6	0.3			5.60		0.043	○	40000	62300
35BNR19X	35	55	10	0.6	0.3			5.60		0.043	○	46700	73400
35BER19S	35	55	10	0.6	0.3	8.80	5.75	10.0	15.5	0.072	○	26700	37800
35BER19H	35	55	10	0.6	0.3			6.80		0.063	○	35600	55600
35BER19X	35	55	10	0.6	0.3			6.80		0.063	○	42300	66700
40BNR19S	40	62	12	0.6	0.3	11.5	7.65	10.8	14.3	0.105	○	27500	39300
40BNR19H	40	62	12	0.6	0.3			7.10		0.092	○	35300	55000
40BNR19X	40	62	12	0.6	0.3			7.10		0.092	○	41200	64800
40BER19S	40	62	12	0.6	0.3	11.0	7.35	12.8	17.9	0.105	○	23600	33400
40BER19H	40	62	12	0.6	0.3			8.65		0.092	○	31400	49100
40BER19X	40	62	12	0.6	0.3			8.65		0.092	○	37300	58900
45BNR19S	45	68	12	0.6	0.3	12.1	8.70	12.4	15.2	0.125	○	24800	35400
45BNR19H	45	68	12	0.6	0.3			8.10		0.111	○	31900	49600
45BNR19X	45	68	12	0.6	0.3			8.10		0.111	○	37200	58500
45BER19S	45	68	12	0.6	0.3	11.6	8.35	14.6	19.2	0.125	○	21300	30100
45BER19H	45	68	12	0.6	0.3			9.85		0.111	○	28400	44300
45BER19X	45	68	12	0.6	0.3			9.85		0.111	○	33700	53100
50BNR19S	50	72	12	0.6	0.3	12.8	9.75	13.9	15.9	0.127	○	23000	32800
50BNR19H	50	72	12	0.6	0.3			9.10		0.111	○	29600	46000
50BNR19X	50	72	12	0.6	0.3			9.10		0.111	○	34500	54100
50BER19S	50	72	12	0.6	0.3	12.3	9.35	16.3	20.2	0.127	○	19700	27900
50BER19H	50	72	12	0.6	0.3			11.0		0.111	○	26300	41000
50BER19X	50	72	12	0.6	0.3			11.0		0.111	○	31200	49200
55BNR19S	55	80	13	1.0	0.6	14.4	11.4	16.2	17.5	0.178	○	20800	29700
55BNR19H	55	80	13	1.0	0.6			10.6		0.158	○	26700	41500
55BNR19X	55	80	13	1.0	0.6			10.6		0.158	○	31200	48900
55BER19S	55	80	13	1.0	0.6	13.8	10.9	16.1	22.2	0.178	○	17800	25200
55BER19H	55	80	13	1.0	0.6			12.9		0.158	○	23800	37100
55BER19X	55	80	13	1.0	0.6			12.9		0.158	○	28200	44500
60BNR19S	60	85	13	1.0	0.6	14.6	12.0	17.1	18.3	0.190	○	19400	27600
60BNR19H	60	85	13	1.0	0.6			11.2		0.170	○	24900	38700
60BNR19X	60	85	13	1.0	0.6			11.2		0.170	○	29000	45600
60BER19S	60	85	13	1.0	0.6	14.0	11.5	20.1	23.4	0.190	○	16600	23500
60BER19H	60	85	13	1.0	0.6			13.6		0.170	○	22100	34500
60BER19X	60	85	13	1.0	0.6			13.6		0.170	○	26300	41400
65BNR19S	65	90	13	1.0	0.6	15.2	13.2	18.7	19.1	0.204	○	18100	25900
65BNR19H	65	90	13	1.0	0.6			12.3		0.181	○	23300	36200
65BNR19X	65	90	13	1.0	0.6			12.3		0.181	○	27100	42600
65BER19S	65	90	13	1.0	0.6	14.5	12.6	22.1	24.6	0.204	○	15500	22000
65BER19H	65	90	13	1.0	0.6			14.9		0.181	○	20700	32300
65BER19X	65	90	13	1.0	0.6			14.9		0.181	○	24600	38800
70BNR19S	70	100	16	1.0	0.6	21.3	18.1	26.1	21.8	0.328	○	16500	23600
70BNR19H	70	100	16	1.0	0.6			17.1		0.292	○	21200	33000
70BNR19X	70	100	16	1.0	0.6			17.1		0.292	○	24800	38900
70BER19S	70	100	16	1.0	0.6	20.4	17.3	30.5	27.8	0.328	○	14200	20000
70BER19H	70	100	16	1.0	0.6			20.7		0.292	○	18900	29500
70BER19X	70	100	16	1.0	0.6			20.7		0.292	○	22400	35300
75BNR19S	75	105	16	1.0	0.6	21.6	19.0	27.5	22.6	0.348	○	15600	22300
75BNR19H	75	105	16	1.0	0.6			18.0		0.310	○	20000	31200
75BNR19X	75	105	16	1.0	0.6			18.0		0.310	○	23400	36700
75BER19S	75	105	16	1.0	0.6	20.7	18.2	32.5	29.0	0.348	○	13400	18900
75BER19H	75	105	16	1.0	0.6			21.7		0.310	○	17800	27800
75BER19X	75	105	16	1.0	0.6			21.7		0.310	○	21200	33400
80BNR19S	80	110	16	1.0	0.6	22.0	19.9	28.9	23.4	0.366	○	14800	21100
80BNR19H	80	110	16	1.0	0.6			18.9		0.326	○	19000	29500
80BNR19X	80	110	16	1.0	0.6			18.9		0.326	○	22200	34800
80BER19S	80	110	16	1.0	0.6	21.0	19.1	34.0	30.1	0.366	○	12700	17900
80BER19H	80	110	16	1.0	0.6			22.8		0.326	○	16900	26400
80BER19X	80	110	16	1.0	0.6			22.8		0.326	○	20000	31600
85BNR19S	85	120	18	1.1	0.6	29.4	26.3	38.0	25.7	0.527	○	13700	19600
85BNR19H	85	120	18	1.1	0.6			24.8		0.456	○	17600	27400
85BNR19X	85	120	18	1.1	0.6			24.8		0.456	○	20500	32200
85BER19S	85	120	18	1.1	0.6	28.1	25.2	35.5	32.9	0.527	○	11800	16600
85BER19H	85	120	18	1.1	0.6			30.0		0.456	○	15700	24400
85BER19X	85	120	18	1.1	0.6			30.0		0.456	○	18600	29300
90BNR19S	90	125	18	1.1	0.6	31.5	29.7	43.0	26.5	0.552	○	13100	18700
90BNR19H	90	125	18	1.1	0.6			28.1		0.480	○	16800	26100
90BNR19X	90	125	18	1.1	0.6			28.1		0.480	○	19600	30700
90BER19S	90	125	18	1.1	0.6	30.0	28.5	50.5	34.1	0.552	○	11200	15900
90BER19H	90	125	18	1.1	0.6			34.0		0.480	○	14900	23300
90BER19X	90	125	18	1.1	0.6			34.0		0.480	○	17700	28000
95BNR19S	95	130	18	1.1	0.6	32.0	31.0	50.0	28.3	0.571	○	12500	17800
95BNR19H	95	130	18	1.1	0.6			32.5		0.497	○	16000	24900
95BNR19X	95	130	18	1.1	0.6			32.5		0.497	○	18700	29400
95BER19S	95	130	18	1.1	0.6	30.5	29.7	58.5	36.7	0.571	○	10700	15200
95BER19H	95	130	18	1.1	0.6			39.5		0.497	○	14300	22300
95BER19X	95	130	18	1.1	0.6			39.5		0.497	○	16900	26700
100BNR19S	190	140	20	1.1	0.6	38.0	35.0	50.5	29.5	0.770	○	11700	16700
100BNR19H	190	140	20	1.1	0.6			33.0		0.673	○	15000	23400
100BNR19X	190	140	20	1.1	0.6			33.0		0.673	○	17500	27500
100BER19S	190	140	20	1.1	0.6	36.0	33.5	59.5	38.0	0.770	○	10000	14200
100BER19H	190	140	20	1.1	0.6			40.0		0.673	○	13400	20900
100BER19X	190	140	20	1.1	0.6			40.0		0.673	○	15900	25000
105BNR19S	195	145	20	1.1	0.6	38.5	36.5	53.0	31.5	0.785	○	11200	16000
105BNR19H	195	145	20	1.1	0.6			39.0		0.693	○	14400	22400
105BNR19X	195	145	20	1.1	0.6			39.0		0.693	○	16800	26400
105BER19S	195	145	20	1.1	0.6	37.0	35.0	62.0	40.9	0.795	○	9600	13600
105BER19H	195	145	20	1.1	0.6			42.0		0.693	○	12800	20000
105BER19X	195	145	20	1.1	0.6			42.0		0.693	○	15200	24000
110BNR19S	119	150	20	1.1	0.6	39.0	38.0	55.5	31.1	0.838	○	10800	15400
110BNR19H	119	150	20	1.1	0.6			42.0		0.733	○	13900	21600
110BNR19X	119	150	20	1.1	0.6			42.0		0.733	○	16200	25400
110BER19S	119	150	20	1.1	0.6	37.5	36.5	65.0	40.3	0.838	○	9300	13100
110BER19H	119	150	20	1.1	0.6			44.0		0.733	○	12400	19300
110BER19X	119	150	20	1.1	0.6			44.0		0.733	○	14700	23100
120BNR19S	120	165	22	1.1	0.6	54.0	52.0	75.0	34.2	1.124	○	9900	14100
120BNR19H	120	165	22	1.1	0.6			49.0		0.949	○	12700	19700
120BNR19X	120	165	22	1.1	0.6			49.0		0.949	○	14800	23200
120BER19S	120	165	22	1.1	0.6	51.5	50.0	88.0	44.2	1.124	○	8500	12000
120BER19H	120	165	22	1.1	0.6			59.5		0.949	○	11300	17600
120BER19X	120	165	22	1.1	0.6			59.5		0.949	○	13400	21100
130BNR19S	130	180	24	1.5	1.0	59.5	58.5	85.0	37.2	1.477	○	9100	13000
130BNR19H	130	180	24	1.5	1.0	59.5	58.5	56.0	37.2	1.265	○	11700	18100
130BER19S	130	180	24	1.5	1.0	57.0	56.5	100	48.1	1.477	○	7800	11000
130BER19H	130	180	24	1.5	1.0	57.0	56.5	67.5	48.1	1.265	○	10400	16200
140BNR19S	140	190	24	1.5	1.0	60.0	61.5	89.5	38.8	1.567	○	8500	12200
140BNR19H	140	190	24	1.5	1.0	60.0	61.5	58.5	38.8	1.353	○	11000	17000
140BER19S	140	190	24	1.5	1.0	57.5	59.0	105	50.5	1.567	○	7300	10400
140BER19H	140	190	24	1.5	1.0	57.5	59.0	70.5	50.5	1.353	○	9700	15200
150BNR19S	150	210	28	2.0	1.0	77.0	78.5	114	43.2	2.459	○	7800	11200
150BNR19H	150	210	28	2.0	1.0	77.0	78.5	75.0	43.2	2.139	○	10000	15600
150BER19S	150	210	28	2.0	1.0	73.5	75.5	134	55.9	2.459	○	6700	9500
150BER19H	150	210	28	2.0	1.0	73.5	75.5	90.5	55.9	2.139	○	8900	13900

Quality Standard

Rockewell Bearings has added parameters that are not defined by ISO/ABEC for customers, including preload tolerances, functional tests, traceability and micron codes, cleanliness, raceway curvature, balls, etc. and roundness, surface processing (function And non-functional surfaces), steel specifications, cage trim and design, and installation chamfering. The definition of these parameters improves the quality of precision angular contact ball bearing products, thereby improving the performance of machine tool spindles.
The element of precision angular contact ball bearings is the cage, which is very important for machine tool bearings. The performance of the cage will affect the stability of machine tool bearings under high-speed rotation. The standard cage produced by Rockewell is made of phenolic resin. The internal design and the tolerance of the pocket gap are tight and the guide surface is controlled to ensure the stability of the cage during high-speed operation, lubrication and dynamic load.
The two elements of precision angular contact ball bearings are cleanliness, which is very important for precision angular contact ball bearings. Generally, the parts of the bearing products must be cleaned with a multi-solvent for 3 hours to prevent impurities from entering the bearing and prevent inherent pollution sources. In addition, the non-working surface of the bearing must be ground to ensure that the bearing is free of impurities before leaving the factory. Therefore, the bearing products produced by Rockewell can increase the normal operating time of the machine tool.
There are two main structural design methods for precision angular contact ball bearings: the high-rigidity WI series and the high-speed HX series to meet the requirements of different applications. The basic, open Rockewell bearing design has a higher spindle speed and greater dynamic radial stiffness, so the spindle can cut more material in a shorter time while ensuring excellent finished product tolerances. These improvements are attributed to the combination of the ball body and the precision engineering design of the raceway profile, which improves the processing rate.

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